近日,方圆回转支承股份有限公司自主研发的可换齿轮式回转支承(ZL200820161855.2)喜获中华人民共和国国家知识产权局颁发的实用新型专利证书。至此,方圆支承公司已经获得实用新型回转支承专利5项,分别为:哈呋式回转支承、灌装机用双回转式回转支承、双列球式回转支承、重型拖车用双 Recently, Fangyuan Slewing Ring Co., Ltd. independent research and development of exchangeable gear slewing bearing (ZL200820161855.2) won the People’s Republic of China State Intellectual Property Office issued a utility model patent certificate. At this point, the radius of the company has received rotary support utility model rotary support patents 5, namely: Harvard slewing bearings, filling machine with double slewing slewing bearings, double row ball slewing bearings, heavy-duty trailers with double